Blend ice cream, milk, strawberries, yogurt, and blueberries in a blender until smooth and creamy.

Prepare the glass you’ll be using. Add two to three drops of red food coloring to the glass and tilt to spread around a bit, then carefully pour shake into the glass.

Spread marshmallow fluff around the top of the glass and stick on meringues, candy, or sprinkles.

Build height with cotton candy, then add the cone (place it on a skewer for support). Add marshmallows and a colorful lollipop and finish off with whipped cream. Serve with colorful straws.